You have chosen 'Cosmic Apprentice' by Dorion Sagan, 'Fourfold Root of Princ of Sufficient Reason' by Arthur Schopenhauer and 'Consciousness, Philosophy and Mathematics' by Luitzen E.J. Brouwer
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Existence, or select a subheading: |
| A. | Nature of Existence | |
| B. | Change in Existence | |
| C. | Structure of Existence | |
| D. | Theories of Reality | |
| E. | Categories |